Department of Physics

The metallic sphere in a uniform ac magnetic field: A simple and precise experiment for exploring eddy currents and non-destructive testing

Honke, Michael L.; Bidinosti, Christopher P. (American Association of Physics Teachers, 2018-06)

We describe a very simple experiment that utilizes standard laboratory equipment to measure the electromagnetic response of a metallic sphere exposed to a uniform ac magnetic field. Measurements were made for a variety of ...
Passive magnetic shielding in static gradient fields

Bidinosti, C. P.; Martin, J. W. (American Institute of Physics, 2014)

The effect of passive magnetic shielding on dc magnetic field gradients imposed by both external and internal sources is studied for two idealized shield models: concentric spherical and infinitely-long cylindrical shells ...